Developments in the studies of white electroluminescence from singlepolymer systems were reviewed according to single-polymer systems with simultaneous two-color or threecolor emission

because white-light emission requires the mixing of two complementary colors or three primary colors(red

green and blue colors).In these single-polymer WPLED systems

selection of highly efficient and suitable blue-

green-

and red-emitting components and their attachment ways to polymer backbones are important for stable and efficient white-light emission.Either singlet or triplet species can be choses as the multiple emission components in single-polymer WPLED systems.Based on the recent progress in single-polymer systems for white light-emitting diodes

the future of the research in this field is envisaged.